installation guide

there is:
Make the AppImage runnable:
chmod +x Audacity*.AppImage

but downloaded image is with low letter a at the beginning so command wont run

Sure, and the AppImage name is not “Audacity*.AppImage”. It may be:

  • audacity-linux-3.0.5-x86_64.AppImage
  • audacity-linux-3.0.4-x86_64.AppImage
  • something else

chmod +x audacity*.AppImage may work on some machines but not others.
Best to use the actual file name, for example:

chmod +x audacity-linux-3.0.5-x86_64.AppImage